No office rate
31528 identifies the initial laryngeal dilation in a treatment series; 31529 identifies a subsequent dilation procedure.
On this page
CMS RVU26D · Effective 2026-10-01
31529 in Redding
Office / nonfacility
Not available in this setting
Base rate per service
Facility setting
$137.19
Base rate per service
Amounts below use the non-QP conversion factor for participating physicians. These are base physician payments before claim-level adjustments, not patient costs or total hospital charges.
Otolaryngology
About 31529: Subsequent laryngeal dilation
Direct laryngoscopy with dilation treats persistent or recurrent laryngeal narrowing during a subsequent procedure in a dilation series.
An otolaryngologist uses direct laryngoscopy to examine the larynx and dilate a narrowed area, commonly for persistent or recurrent stenosis after an earlier dilation. The service is typically performed in an operating room, often under general anesthesia. This code identifies a subsequent dilation procedure in the treatment series, rather than the initial dilation represented by its sibling code.
Report the subsequent-service code when the operative record supports that the patient is returning for another dilation procedure; document the laryngeal finding, dilation performed, and relevant prior treatment. The procedure has a 0-day global period, so same-day preoperative and postoperative care are included. When related endoscopies are performed together, CMS endoscopy-family pricing applies. Modifier 50 is inappropriate for this code. Assistant-at-surgery payment requires documented medical necessity; co-surgeons and team surgery are not permitted.
CMS billing rules for 31529
- Global period
- Minor procedure with a 0-day global period: same-day preoperative and postoperative care is included.
- Multiple procedures
- Endoscopy family pricing applies when related endoscopies are performed together.
- Bilateral procedures
- Bilateral adjustment does not apply; the descriptor or anatomy makes modifier 50 inappropriate.
- Assistant at surgery
- Assistant at surgery is paid only with documentation of medical necessity.
- Co-surgeons
- Co-surgeons not permitted.
- Team surgery
- Team surgery not permitted.
Where the value comes from
- Work RVU2.61 · 63%
- Practice expense (office) RVU1.14 · 28%
- Malpractice RVU0.38 · 9%
629
Medicare services in 2024 · #3353 by national volume
This summary was written with AI assistance from CMS physician fee schedule data and checked against the CMS billing rules shown here. Rates on this page come directly from CMS files.
31529 compared with similar codes
Office rates for Redding, from the same CMS release.
$261.42
31525 is diagnostic laryngoscopy. Choose 31529 when direct laryngoscopy includes therapeutic dilation of laryngeal narrowing.
No office rate
31551 is laryngoplasty for laryngeal stenosis, a reconstructive procedure; 31529 is endoscopic dilation.
The same code, a different location
How does Redding compare?
31529 across payment areas
Same release and payment basis · bars start at $0
Redding · This locality
Unavailable
Unavailable
No comparable rate is available in this setting.
Unavailable
No comparable rate is available in this setting.
Unavailable
No comparable rate is available in this setting.
Unavailable
No comparable rate is available in this setting.
Unavailable
No comparable rate is available in this setting.
No comparable rate is available in this setting.
Other payment areas listed in California appear first, followed by selected cross-country examples. The chart compares amounts, not distance.
The code’s RVUs stay the same in these comparisons. Geographic adjustments to work, practice expense and malpractice change the dollar amount. A city name alone may not identify the payment area for a service address.
Compare all 108 other payment areas
Madera
California · 31529
Office
Unavailable
Facility
$137.19
No comparable office rate is available.
Merced
California · 31529
Office
Unavailable
Facility
$137.19
No comparable office rate is available.
Modesto
California · 31529
Office
Unavailable
Facility
$137.19
No comparable office rate is available.
Napa
California · 31529
Office
Unavailable
Facility
$149.30
No comparable office rate is available.
Oxnard-Thousand Oaks-Ventura
California · 31529
Office
Unavailable
Facility
$142.53
No comparable office rate is available.
Rest Of California
California · 31529
Office
Unavailable
Facility
$137.19
No comparable office rate is available.
Riverside-San Bernardino-Ontario
California · 31529
Office
Unavailable
Facility
$141.30
No comparable office rate is available.
Sacramento-Roseville-Folsom
California · 31529
Office
Unavailable
Facility
$141.40
No comparable office rate is available.
Salinas
California · 31529
Office
Unavailable
Facility
$140.81
No comparable office rate is available.
San Diego-Chula Vista-Carlsbad
California · 31529
Office
Unavailable
Facility
$142.21
No comparable office rate is available.
San Francisco-Oakland-Berkeley (Marin Cnty)
California · 31529
Office
Unavailable
Facility
$154.97
No comparable office rate is available.
San Francisco-Oakland-Berkeley (San Francisco/San Mateo/Alameda/Contra Costa Cnty)
California · 31529
Office
Unavailable
Facility
$154.54
No comparable office rate is available.
San Jose-Sunnyvale-Santa Clara (San Benito Cnty)
California · 31529
Office
Unavailable
Facility
$158.48
No comparable office rate is available.
San Jose-Sunnyvale-Santa Clara (Santa Clara Cnty)
California · 31529
Office
Unavailable
Facility
$156.71
No comparable office rate is available.
San Luis Obispo-Paso Robles
California · 31529
Office
Unavailable
Facility
$138.83
No comparable office rate is available.
Santa Cruz-Watsonville
California · 31529
Office
Unavailable
Facility
$142.07
No comparable office rate is available.
Santa Maria-Santa Barbara
California · 31529
Office
Unavailable
Facility
$140.82
No comparable office rate is available.
Santa Rosa-Petaluma
California · 31529
Office
Unavailable
Facility
$143.35
No comparable office rate is available.
Stockton
California · 31529
Office
Unavailable
Facility
$137.19
No comparable office rate is available.
Vallejo
California · 31529
Office
Unavailable
Facility
$148.68
No comparable office rate is available.
Visalia
California · 31529
Office
Unavailable
Facility
$137.19
No comparable office rate is available.
Yuba City
California · 31529
Office
Unavailable
Facility
$137.19
No comparable office rate is available.
Dc + Md/Va Suburbs
District of Columbia · 31529
Office
Unavailable
Facility
$150.87
No comparable office rate is available.
Miami
Florida · 31529
Office
Unavailable
Facility
$158.91
No comparable office rate is available.
Chicago
Illinois · 31529
Office
Unavailable
Facility
$155.18
No comparable office rate is available.
Manhattan
New York · 31529
Office
Unavailable
Facility
$157.13
No comparable office rate is available.
Alaska*
Alaska · 31529
Office
Unavailable
Facility
$178.31
No comparable office rate is available.
Alabama
Alabama · 31529
Office
Unavailable
Facility
$127.68
No comparable office rate is available.
Arkansas
Arkansas · 31529
Office
Unavailable
Facility
$126.42
No comparable office rate is available.
Arizona
Arizona · 31529
Office
Unavailable
Facility
$134.94
No comparable office rate is available.
Colorado
Colorado · 31529
Office
Unavailable
Facility
$138.65
No comparable office rate is available.
Connecticut
Connecticut · 31529
Office
Unavailable
Facility
$145.29
No comparable office rate is available.
Delaware
Delaware · 31529
Office
Unavailable
Facility
$136.64
No comparable office rate is available.
Fort Lauderdale
Florida · 31529
Office
Unavailable
Facility
$148.70
No comparable office rate is available.
Rest Of Florida
Florida · 31529
Office
Unavailable
Facility
$142.65
No comparable office rate is available.
Atlanta
Georgia · 31529
Office
Unavailable
Facility
$141.37
No comparable office rate is available.
Rest Of Georgia
Georgia · 31529
Office
Unavailable
Facility
$136.27
No comparable office rate is available.
Hawaii, Guam
Hawaii · 31529
Office
Unavailable
Facility
$137.82
No comparable office rate is available.
Iowa
Iowa · 31529
Office
Unavailable
Facility
$127.06
No comparable office rate is available.
Idaho
Idaho · 31529
Office
Unavailable
Facility
$128.21
No comparable office rate is available.
East St. Louis
Illinois · 31529
Office
Unavailable
Facility
$147.77
No comparable office rate is available.
Rest Of Illinois
Illinois · 31529
Office
Unavailable
Facility
$141.78
No comparable office rate is available.
Suburban Chicago
Illinois · 31529
Office
Unavailable
Facility
$149.38
No comparable office rate is available.
Indiana
Indiana · 31529
Office
Unavailable
Facility
$128.64
No comparable office rate is available.
Kansas
Kansas · 31529
Office
Unavailable
Facility
$127.99
No comparable office rate is available.
Kentucky
Kentucky · 31529
Office
Unavailable
Facility
$132.64
No comparable office rate is available.
New Orleans
Louisiana · 31529
Office
Unavailable
Facility
$137.43
No comparable office rate is available.
Rest Of Louisiana
Louisiana · 31529
Office
Unavailable
Facility
$133.03
No comparable office rate is available.
Metropolitan Boston
Massachusetts · 31529
Office
Unavailable
Facility
$147.51
No comparable office rate is available.
Rest Of Massachusetts
Massachusetts · 31529
Office
Unavailable
Facility
$138.78
No comparable office rate is available.
Baltimore/Surr. Cntys
Maryland · 31529
Office
Unavailable
Facility
$145.13
No comparable office rate is available.
Rest Of Maryland
Maryland · 31529
Office
Unavailable
Facility
$138.23
No comparable office rate is available.
Rest Of Maine
Maine · 31529
Office
Unavailable
Facility
$130.10
No comparable office rate is available.
Southern Maine
Maine · 31529
Office
Unavailable
Facility
$132.92
No comparable office rate is available.
Detroit
Michigan · 31529
Office
Unavailable
Facility
$145.32
No comparable office rate is available.
Rest Of Michigan
Michigan · 31529
Office
Unavailable
Facility
$136.27
No comparable office rate is available.
Minnesota
Minnesota · 31529
Office
Unavailable
Facility
$130.11
No comparable office rate is available.
Metropolitan Kansas City
Missouri · 31529
Office
Unavailable
Facility
$135.33
No comparable office rate is available.
Metropolitan St. Louis
Missouri · 31529
Office
Unavailable
Facility
$136.14
No comparable office rate is available.
Rest Of Missouri
Missouri · 31529
Office
Unavailable
Facility
$132.36
No comparable office rate is available.
Mississippi
Mississippi · 31529
Office
Unavailable
Facility
$129.34
No comparable office rate is available.
Montana**
Montana · 31529
Office
Unavailable
Facility
$137.92
No comparable office rate is available.
North Carolina
North Carolina · 31529
Office
Unavailable
Facility
$130.81
No comparable office rate is available.
North Dakota**
North Dakota · 31529
Office
Unavailable
Facility
$130.41
No comparable office rate is available.
Nebraska
Nebraska · 31529
Office
Unavailable
Facility
$127.12
No comparable office rate is available.
New Hampshire
New Hampshire · 31529
Office
Unavailable
Facility
$137.92
No comparable office rate is available.
Northern Nj
New Jersey · 31529
Office
Unavailable
Facility
$150.39
No comparable office rate is available.
Rest Of New Jersey
New Jersey · 31529
Office
Unavailable
Facility
$146.17
No comparable office rate is available.
New Mexico
New Mexico · 31529
Office
Unavailable
Facility
$137.34
No comparable office rate is available.
Nevada**
Nevada · 31529
Office
Unavailable
Facility
$135.86
No comparable office rate is available.
Nyc Suburbs/Long Island
New York · 31529
Office
Unavailable
Facility
$161.60
No comparable office rate is available.
Poughkpsie/N Nyc Suburbs
New York · 31529
Office
Unavailable
Facility
$148.15
No comparable office rate is available.
Queens
New York · 31529
Office
Unavailable
Facility
$156.07
No comparable office rate is available.
Rest Of New York
New York · 31529
Office
Unavailable
Facility
$132.27
No comparable office rate is available.
Ohio
Ohio · 31529
Office
Unavailable
Facility
$134.73
No comparable office rate is available.
Oklahoma
Oklahoma · 31529
Office
Unavailable
Facility
$131.04
No comparable office rate is available.
Portland
Oregon · 31529
Office
Unavailable
Facility
$140.32
No comparable office rate is available.
Rest Of Oregon
Oregon · 31529
Office
Unavailable
Facility
$134.02
No comparable office rate is available.
Metropolitan Philadelphia
Pennsylvania · 31529
Office
Unavailable
Facility
$143.53
No comparable office rate is available.
Rest Of Pennsylvania
Pennsylvania · 31529
Office
Unavailable
Facility
$134.13
No comparable office rate is available.
Puerto Rico
Puerto Rico · 31529
Office
Unavailable
Facility
$138.17
No comparable office rate is available.
Rhode Island
Rhode Island · 31529
Office
Unavailable
Facility
$139.49
No comparable office rate is available.
South Carolina
South Carolina · 31529
Office
Unavailable
Facility
$133.15
No comparable office rate is available.
South Dakota**
South Dakota · 31529
Office
Unavailable
Facility
$129.52
No comparable office rate is available.
Tennessee
Tennessee · 31529
Office
Unavailable
Facility
$128.60
No comparable office rate is available.
Austin
Texas · 31529
Office
Unavailable
Facility
$138.88
No comparable office rate is available.
Beaumont
Texas · 31529
Office
Unavailable
Facility
$133.62
No comparable office rate is available.
Brazoria
Texas · 31529
Office
Unavailable
Facility
$135.51
No comparable office rate is available.
Dallas
Texas · 31529
Office
Unavailable
Facility
$136.78
No comparable office rate is available.
Fort Worth
Texas · 31529
Office
Unavailable
Facility
$136.56
No comparable office rate is available.
Galveston
Texas · 31529
Office
Unavailable
Facility
$136.19
No comparable office rate is available.
Houston
Texas · 31529
Office
Unavailable
Facility
$143.15
No comparable office rate is available.
Rest Of Texas
Texas · 31529
Office
Unavailable
Facility
$134.77
No comparable office rate is available.
Utah
Utah · 31529
Office
Unavailable
Facility
$134.37
No comparable office rate is available.
Virginia
Virginia · 31529
Office
Unavailable
Facility
$133.57
No comparable office rate is available.
Virgin Islands
United States Virgin Islands · 31529
Office
Unavailable
Facility
$138.17
No comparable office rate is available.
Vermont
Vermont · 31529
Office
Unavailable
Facility
$131.29
No comparable office rate is available.
Rest Of Washington
Washington · 31529
Office
Unavailable
Facility
$138.06
No comparable office rate is available.
Seattle (King Cnty)
Washington · 31529
Office
Unavailable
Facility
$148.63
No comparable office rate is available.
Wisconsin
Wisconsin · 31529
Office
Unavailable
Facility
$127.56
No comparable office rate is available.
West Virginia
West Virginia · 31529
Office
Unavailable
Facility
$138.43
No comparable office rate is available.
Wyoming**
Wyoming · 31529
Office
Unavailable
Facility
$134.65
No comparable office rate is available.
See how rates vary across the country
31529 · Office / nonfacility · Non-QP. Choose a state to explore its payment localities. A range means the amount varies within that state.
Explore a state
Local rates. Clear comparisons.
Hover or focus a tile to see its rate range. Select it to open the state’s fee schedule.
View all state and territory rates as a table
| State / territory | Rate range | Localities |
|---|---|---|
| AK | No published base rate | 1 |
| AL | No published base rate | 1 |
| AR | No published base rate | 1 |
| AZ | No published base rate | 1 |
| CA | No published base rate | 29 |
| CO | No published base rate | 1 |
| CT | No published base rate | 1 |
| DC | No published base rate | 1 |
| DE | No published base rate | 1 |
| FL | No published base rate | 3 |
| GA | No published base rate | 2 |
| GU | No published base rate | 1 |
| HI | No published base rate | 1 |
| IA | No published base rate | 1 |
| ID | No published base rate | 1 |
| IL | No published base rate | 4 |
| IN | No published base rate | 1 |
| KS | No published base rate | 1 |
| KY | No published base rate | 1 |
| LA | No published base rate | 2 |
| MA | No published base rate | 2 |
| MD | No published base rate | 3 |
| ME | No published base rate | 2 |
| MI | No published base rate | 2 |
| MN | No published base rate | 1 |
| MO | No published base rate | 3 |
| MS | No published base rate | 1 |
| MT | No published base rate | 1 |
| NC | No published base rate | 1 |
| ND | No published base rate | 1 |
| NE | No published base rate | 1 |
| NH | No published base rate | 1 |
| NJ | No published base rate | 2 |
| NM | No published base rate | 1 |
| NV | No published base rate | 1 |
| NY | No published base rate | 5 |
| OH | No published base rate | 1 |
| OK | No published base rate | 1 |
| OR | No published base rate | 2 |
| PA | No published base rate | 2 |
| PR | No published base rate | 1 |
| RI | No published base rate | 1 |
| SC | No published base rate | 1 |
| SD | No published base rate | 1 |
| TN | No published base rate | 1 |
| TX | No published base rate | 8 |
| UT | No published base rate | 1 |
| VA | No published base rate | 2 |
| VI | No published base rate | 1 |
| VT | No published base rate | 1 |
| WA | No published base rate | 2 |
| WI | No published base rate | 1 |
| WV | No published base rate | 1 |
| WY | No published base rate | 1 |
Where does this rate apply?
Redding is a Medicare payment area. Our Census mapping connects it to 32 cities and communities in California, including the examples shown here.
Some communities span more than one payment area. Follow a city link to compare all of its mapped areas, or check the service-location ZIP above for an address-level starting point.
Use this rate
What is a percentage of Medicare worth?
Turn a percentage into dollars for 31529 in Redding. This uses the base rate on this page, so the locality and release stay consistent.
Reference amount per service
$150.91
$137.19 × 110% = $150.91
A contract may specify another Medicare year or additional adjustments. This is percentage arithmetic on the displayed base rate, not a claim adjudication.
Working with a whole code list?
Compare an offer across your annual code mix, including an older Medicare schedule or flat per-code rates.
How this local rate is calculated
Each RVU component is multiplied by its own geographic practice cost index (GPCI). The three adjusted components are added, then multiplied by the conversion factor. These are the inputs used for 31529 in Redding.
PPRRVU2026_Oct_nonQPP.csv
3,587
- Code
- 31529
- Physician work
- 2.61
- Practice expense
- 1.14
- Malpractice
- 0.38
GPCI2026.csv
19
- Locality
- Redding
- Physician work
- 1.017
- Practice expense
- 1.096
- Malpractice
- 0.536
| Component | RVU | Locality factor | Adjusted |
|---|---|---|---|
| Physician work | 2.61 | × 1.017 | 2.6544 |
| Practice expense | 1.14 | × 1.096 | 1.2494 |
| Malpractice | 0.38 | × 0.536 | 0.2037 |
| Total RVUs | 4.1075 | ||
| Conversion factor | × 33.4009 | ||
Facility rate, Redding$137.19
Open 31529 in the RVU calculator →
Explore RVUs, geographic factors and the full formula
Facility
| Component | RVU | Local GPCI |
|---|---|---|
| Work | 2.61 | 1.017 |
| Practice expense | 1.14 | 1.096 |
| Malpractice | 0.38 | 0.536 |
(2.61 × 1.017 + 1.14 × 1.096 + 0.38 × 0.536) × $33.4009 = $137.19
The office and facility calculations use their respective practice-expense RVUs. The facility amount here is the physician fee, not a separate hospital or facility bill.
How this rate has changed
31529 · Office / nonfacility
Rate unavailable
Effective 2026-10-01
A rate is unavailable in one of these releases, so a change cannot be calculated.
One bar per available release, ordered by effective date. Missing rates remain gaps. These comparisons hold the code, setting and locality identifiers constant; they do not isolate which policy or input caused a change.
What changed, release by release
Explore release dates and calculate this code in an earlier period →
Each row uses the accepted CMS release effective on that date and the same contractor and locality identifiers. Missing rates stay visible. Historical boundaries may differ; verify the service address for an older claim.
Inspect every release and its CMS source
| Effective from | Office / nonfacility | Facility | CMS release |
|---|---|---|---|
| 2026-10-01 | Not available in this setting | $137.19 | RVU26D |
| 2026-07-01 | Not available in this setting | $137.19 | RVU26C |
| 2026-04-01 | Not available in this setting | $137.19 | RVU26B |
| 2026-01-01 | Not available in this setting | $137.19 | RVU26A |
| 2025-10-01 | Not available in this setting | $157.19 | RVU25D |
| 2025-07-01 | Not available in this setting | $157.19 | RVU25C |
| 2025-04-01 | Not available in this setting | $157.19 | RVU25B |
| 2025-01-01 | Not available in this setting | $157.19 | RVU25A |
31529 billing questions
How does this code differ from 31528?
31529 is for a subsequent laryngeal dilation procedure in a treatment series. Use 31528 for the initial dilation.
Does a second dilation during the same operation make this the subsequent code?
No. The distinction is between the initial and a subsequent procedure in the treatment series, not the number of dilation maneuvers during one operation.
Can diagnostic laryngoscopy be separately reported with the dilation?
The laryngoscopic visualization used to perform the dilation is part of the service. Do not separately report a diagnostic laryngoscopy for that same operative inspection.
Should modifier 50 be appended for dilation on both sides?
No. CMS identifies bilateral adjustment as inappropriate for this code.
What documentation supports reporting a subsequent dilation?
Document the laryngeal narrowing, the direct laryngoscopy and dilation performed, and the prior treatment supporting that this is a subsequent procedure in the series.
When may an assistant-at-surgery be paid?
Only when the record documents medical necessity for the assistant. CMS does not permit co-surgeon or team-surgery payment for this code.
Where these rates come from
FeeBase calculates base physician payments from CMS work, practice-expense, and malpractice RVUs, adjusted by each locality’s geographic indices and the applicable conversion factor. Unavailable or separately priced services are labeled rather than assigned a made-up amount.
Source: RVU26D. Effective 2026-10-01 through the day before 2027-01-01.
3,58431526,,Dx laryngoscopy w/oper scope,A,,2.51,1.17,NA,1.17,,0.37,4.05,4.05,0,000,0.00,0.00,0.00,2,0,1,0,0,9,,33.4009,09,0,99,0.00,0.00,0.00
3,58531527,,Laryngoscopy for treatment,A,,3.19,1.34,NA,1.34,,0.46,4.99,4.99,0,000,0.00,0.00,0.00,3,0,0,0,0,9,31525,33.4009,09,0,99,0.00,0.00,0.00
3,58631528,,Laryngoscopy and dilation,A,,2.31,1.08,NA,1.08,,0.35,3.74,3.74,0,000,0.00,0.00,0.00,3,0,0,0,0,9,31525,33.4009,09,0,99,0.00,0.00,0.00
3,58731529,,Laryngoscopy and dilation,A,,2.61,1.14,NA,1.14,,0.38,4.13,4.13,0,000,0.00,0.00,0.00,3,0,0,0,0,9,31525,33.4009,09,0,99,0.00,0.00,0.00
3,58831530,,Laryngoscopy w/fb removal,A,,3.30,1.37,NA,1.37,,0.51,5.18,5.18,0,000,0.00,0.00,0.00,3,0,1,0,0,9,31525,33.4009,09,0,99,0.00,0.00,0.00
3,58931531,,Laryngoscopy w/fb & op scope,A,,3.49,1.45,NA,1.45,,0.50,5.44,5.44,0,000,0.00,0.00,0.00,3,0,0,0,0,9,31526,33.4009,09,0,99,0.00,0.00,0.00
3,59031535,,Laryngoscopy w/biopsy,A,,3.08,1.32,NA,1.32,,0.45,4.85,4.85,0,000,0.00,0.00,0.00,3,0,1,0,0,9,31525,33.4009,09,0,99,0.00,0.00,0.00
1601112,CA,60,MODESTO,1.017,1.096,0.536
1701112,CA,51,NAPA,1.063,1.318,0.508
1801182,CA,17,OXNARD-THOUSAND OAKS-VENTURA,1.028,1.182,0.623
1901112,CA,61,REDDING,1.017,1.096,0.536
2001112,CA,62,RIVERSIDE-SAN BERNARDINO-ONTARIO,1.018,1.096,0.853
2101112,CA,63,SACRAMENTO-ROSEVILLE-FOLSOM,1.036,1.163,0.536
2201112,CA,64,SALINAS,1.031,1.159,0.536